A non-precious metal hydrogen catalyst in a commercial polymer electrolyte membrane electrolyser.,Nature Nanotechnology

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A non-precious metal hydrogen catalyst in a commercial polymer electrolyte membrane electrolyser.
Nature Nanotechnology ( IF 38.1 ) Pub Date : 2019-10-14 , DOI: 10.1038/s41565-019-0550-7
Laurie A King _{1,

2} , McKenzie A Hubert _{1,

2} , Christopher Capuano ₃ , Judith Manco ₃ , Nemanja Danilovic _{3,

4} , Eduardo Valle _{1,

2} , Thomas R Hellstern _{1,

2} , Katherine Ayers ₃ , Thomas F Jaramillo _{1,

2}

Affiliation

We demonstrate the translation of a low-cost, non-precious metal cobalt phosphide (CoP) catalyst from 1 cm2 lab-scale experiments to a commercial-scale 86 cm2 polymer electrolyte membrane (PEM) electrolyser. A two-step bulk synthesis was adopted to produce CoP on a high-surface-area carbon support that was readily integrated into an industrial PEM electrolyser fabrication process. The performance of the CoP was compared head to head with a platinum-based PEM under the same operating conditions (400 psi, 50 °C). CoP was found to be active and stable, operating at 1.86 A cm-2 for >1,700 h of continuous hydrogen production while providing substantial material cost savings relative to platinum. This work illustrates a potential pathway for non-precious hydrogen evolution catalysts developed in past decades to translate to commercial applications.

中文翻译：

商业聚合物电解质膜电解槽中的非贵金属氢催化剂。

我们演示了一种低成本，非贵金属的磷化钴（CoP）催化剂从1 cm2实验室规模的实验到商业规模的86 cm2聚合物电解质膜（PEM）电解槽的转换。采用两步本体合成以在高表面积碳载体上生产CoP，该载体很容易集成到工业PEM电解槽制造过程中。在相同的工作条件（400 psi，50°C）下，将CoP的性能与铂基PEM进行了比较。发现CoP是活性且稳定的，在1.86 A cm-2的环境下连续运行1,700 h以上可连续制氢，同时相对于铂而言，可节省大量材料成本。这项工作说明了过去数十年来开发的非贵重的氢气析出催化剂转化为商业应用的潜在途径。

更新日期：2019-10-14

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